Perhaps more than any other red-carpet event, one of the most amusing parts of tuning into the Met Gala is seeing which celebrities understood the assignment and dressed according to the theme and which ones appeared to have never bothered to open their invitation. This year, to celebrate the opening of the Metropolitan Museum of Art’s “In America: An Anthology of Fashion” exhibition, the annual fundraiser extravaganza proposed a “Gilded Glamour and White Tie” affair. Occurring on the heels of HBO’s The Gilded Age, the suggested attire would seem to imply an opulent turn-of-the-century sartorial sensibility.